Photos: 'Curiosity' rover set to land on Mars

Nearly a year after it was launched, NASA's Mars Science Laboratory spacecraft, including the new Curiosity rover is set to land on the surface of Mars Sunday night. Curiosity is the biggest vehicle ever sent to Mars. The mission also includes a Canadian component, the Alpha Particle X-Ray Spectrometer (APSX), which will help hunt for signs of life. Take a look back at the making of this historical landing.